<!-- 没成功 -->
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script src="https://unpkg.com/vue@next">

    </script>

    <div id="app">
        <todo-item>
            <template v-slot:[dynamicSlotName]="data">
                <h1>{{data}}</h1>
            </template>
        </todo-item>
      
    </div>

    <script>
        const vueOpt = {
            data(){
                return {
                    dynamicSlotName: ["a-0", 'b-1', 'c-2']
                }
            },

        }

        const app = Vue.createApp(vueOpt);
        app.component('todo-item', {
            data(){
                return {
                    todoItems: ['a', 'b', 'c']
                }
            },

            template:
            `
                <div>
                    <template v-for="(item, index) in todoItems">
                        <slot :name="item + '_' + index"  :data="item"></slot>    
                    </template>
                </div>
            `
        });

        app.mount('#app');
    </script>
</body>
</html>